best wishes 最好的祝愿

give a talk

for example 比如，例如

be short for ...的缩写，简称

a waste of time 浪费时间

go on a field trip 去野外履行。

go fishing 钓鱼

I agree 我同意

next week 下周

the day after tomorrow 后天

have a picnic 去野餐